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$724+ Cheap flights from Dulles Intl (IAD) to Adelaide (ADL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ADL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Dulles Intl to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$1,347
(Air Canada)

One-way from

$724
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,757
From Washington, D.C. Dulles Intl to Adelaide
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One-way flight from Washington, D.C. Dulles Intl to Adelaide
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Highest demand for flights based on searches. 24% potential increase in price ($622 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($110 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Dulles Intl to Adelaide

Cheapest flights from Dulles Intl to Adelaide
Explore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Air Canada deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/248:25 amIAD - ADL
2 stops37h 55mAir Canada
Sun 8/319:20 pmADL - IAD
2 stops46h 41mAir Canada
Deal found 7/28$1,347
This Fiji Airways deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 pmIAD - ADL
2 stops28h 05mMultiple Airlines
Thu 9/1812:35 pmADL - IAD
2 stops23h 47mMultiple Airlines
Deal found 7/28$1,486
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:45 pmIAD - ADL
2 stops32h 40mAir New Zealand
Thu 9/117:00 pmADL - IAD
2 stops39h 51mAir New Zealand
Deal found 7/29$1,528
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:37 pmIAD - ADL
1 stop23h 23mUnited Airlines
Wed 1/72:55 pmADL - IAD
1 stop24h 59mUnited Airlines
Deal found 7/27$1,688
This Qantas Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:30 amIAD - ADL
2 stops34h 35mQantas Airways
Wed 12/179:00 amADL - IAD
2 stops28h 44mQantas Airways
Deal found 7/27$1,804
This Gotogate deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:00 pmIAD - ADL
1 stop29h 20mQatar Airways
Mon 9/226:00 amADL - IAD
2 stops47h 10mQatar Airways
Deal found 7/28$1,827

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Adelaide that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Adelaide that are best for you.

Fly from

Dulles Intl

Fly to

Adelaide

Route

Depart

Return

Price

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 8/24

8:25 am-11:50 am

2 stops37h 55m

Adelaide

Sun 8/31

9:20 pm-6:31 am

2 stops46h 41m

$1,347

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 9/11

6:00 pm-11:35 am

2 stops28h 05m

Adelaide

Thu 9/18

12:35 pm-10:52 pm

2 stops23h 47m

$1,486

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 9/3

12:45 pm-10:55 am

2 stops32h 40m

Adelaide

Thu 9/11

7:00 pm-9:21 pm

2 stops39h 51m

$1,528

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 12/29

6:37 pm-9:30 am

1 stop23h 23m

Adelaide

Wed 1/7

2:55 pm-12:24 am

1 stop24h 59m

$1,688

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 12/9

11:30 am-1:35 pm

2 stops34h 35m

Adelaide

Wed 12/17

9:00 am-10:14 pm

2 stops28h 44m

$1,804

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 9/7

9:00 pm-3:50 pm

1 stop29h 20m

Adelaide

Mon 9/22

6:00 am-3:40 pm

2 stops47h 10m

$1,827

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 8/15

8:19 pm-9:00 pm

3 stops59h 11m

$724

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 8/15

9:00 pm-3:50 pm

1 stop29h 20m

$1,427

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Dulles Intl to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Adelaide

What is the cheapest time of day to fly from IAD to ADL?

Find hourly flight availability from Dulles Intl to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Adelaide as you normally would.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Adelaide?

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated July 29, 2025.
Peruse reviews from past customers who have flown with Air New Zealand, Qantas Airways, and Qatar Airways from Washington, D.C. Dulles Intl Airport to Adelaide to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
502 reviews

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air New Zealand
8.0
Very good
502 reviews
Air New Zealand
8.0
Very good
502 reviews

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qantas Airways
7.5
Good
883 reviews
Air New Zealand
8.0
Very good
502 reviews

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qatar Airways
7.4
Good
3,609 reviews
Air New Zealand
8.0
Very good
502 reviews

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
United Airlines
7.4
Good
8,899 reviews
Air New Zealand
8.0
Very good
502 reviews

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air Canada
7.1
Good
9,822 reviews
Air New Zealand
8.0
Very good
502 reviews

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Washington, D.C. Dulles Intl?

    Located just 4.1 mi from the city center, Adelaide is the airport most travelers will use when flying to Adelaide from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Adelaide (ADL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Adelaide round-trip?

    Flying on Air Canada is currently your cheapest option to Adelaide, with prices starting at $1,347. Additional round-trip tickets that might be worth considering are offered by Air New Zealand and United Airlines, with the lowest prices starting at $1,528 and $1,688, respectively. Air Canada is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Dulles Intl to Adelaide that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Adelaide.

  • Can I find deals for business class flights from Dulles Intl to Adelaide?

    Yes. Cheapflights offers flight deals from Dulles Intl to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Adelaide (average of $1,214). Flying from Washington, D.C. Dulles Intl Airport to Adelaide in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Adelaide?

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Top airline flying from Dulles Intl to Adelaide

Discover the top airline that operate flights from Dulles Intl to Adelaide. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,070Average$1,283FlexibilityNo cancel feeOn-time74%

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